What is "caelus"

n. (context Roman god English) The personification of the sky and heavens. Either the brother-husband or son-&-husband of Terra, with whom he fathered the Titans and the Cyclops. He is the Roman counterpart of Uranus.

Caelus or Coelus was a primal god of the sky in Roman myth and theology, iconography, and literature (compare caelum, the Latin word for "sky" or "the heavens", hence English "celestial"). The deity's name usually appears in masculine grammatical form when he is conceived of as a male generative force, but the neuter form Caelum is also found as a divine personification.